Deburr, Blend and Finish Stainless Steel
3M Cloth Belt 777F contains a grinding aid that reduces running temperatures when used on heat-sensitive alloys like stainless steel, nickel alloys and cobalt alloys. The abrasive grain is bonded to the backing with resin to maintain durability under high heat and pressure. This belt is recommended for use on stainless steel or other exotic metal alloys for dimensioning parts, deburring, blending, and finishing castings and forgings.
Ceramic Abrasive Grain Boosts Performance
For increased performance, 777F products feature aluminum oxide blended with 3M ceramic abrasive grain for a harder, longer-lasting abrasive. Ceramic/aluminum oxide blend surpasses aluminum oxide abrasives in cut-rate and durability and makes the Cloth Belt 777F an excellent choice for moderate stock removal and surface preparation.
Sized to Suit Your Needs
These abrasive belts are available in various widths and lengths for sanding both wood and metal. We offer a broad selection of belts to fit most any industrial belt sander. Wider belts are used with wide belt sanders to dimension or finish wood panels, smooth rough-cut edges of metal sheets, or add a grain pattern to stainless steel sheets. Medium-width belts fit onto edge sanders for sanding flat, narrow surfaces such as panel edges; and narrow belts are used with portable belt sanders for sanding or blending wood pieces such as cabinet doors.
Find Your Flex
Belts come with various flexibilities and splices that join the belt ends. Our 3M Cloth Belt 777F has a film splice for added strength when grinding in high pressure applications. When greater flexibility may be needed to increase conformity or for a softer touch for finishing and blending, an L-flex provides more flexibility than the standard flex, and a full flex belt is the most flexible.
Applications
- Moderate stock removal
- Deburring stainless steel
- Finishing stainless steel
- Surface preparation

Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 98270 1/2" Male Coupler
Dynabrade 97568 3/8" NPT Female Safety Coupler
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 01331, Stikit Gold Film Disc Roll, 6 in, P120 grade, 7010292680, 75 discs per roll
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 01328, Stikit Gold Film Disc Roll, 6 in, P220 grade, 7010308781, 75 discs per roll
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 88507, Flap Disc 769F, 80+, Quick Change, Type 29, 4-1/2 in x 5/8 in-11, 7100243873, 10 per case
3M 01298, Hookit Red Abrasive Disc, 5 in, P180, 7000119854, 50 discs per carton
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 21919, Wetordry Paper Disc 431Q, 120 C-weight, 12 in x NH, Die 1200B, 7000120333
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 69645, Hookit Gold Film Disc 255L, P320, 6 in x NH, 7100048223, 100 discs per box
Standard Abrasives 840434, Quick Change Surface Conditioning RC Disc, Coarse, TSM, 3 in, 7100142216, 100/case
3M 30260, Hookit Purple Clean Sanding Disc 343U, 3 in, P800, 7000000504, 50 discs per carton
3M 55651, Cubitron II Flap Disc 967A, 60+, T29 Quick Change, 7 in 5/8"-11, Giant, 7010363309
Standard Abrasives 528423, Quick Change Zirconia Pro 2 Ply Disc, 40, TSM, 2 in, Die QS200PM, 7100220955, 200/case
Standard Abrasives 840432, Quick Change Surface Conditioning FE Disc, A/O Medium, TSM, Maroon, 3 in, 7100142247, 100/case
3M 20514, Trizact Finesse-it Film Disc Roll 466LA, A3, 1-3/8 in x NH, Scallop, Die 143S, 7100067988, 500 discs per roll
3M 77306, Cubitron ll Stikit Paper Disc 732U, 80+ to 220+, 5 in x NH, Die 500X, Multi-pack, 7100230324, 5 per pack
3M 07514, Scotch-Brite Roloc Surface Conditioning Disc TR 07514, 3 in x NH S SFN, 7000120974, 4 boxes/case
3M 77143, Scotch-Brite Hookit 7447 Pro Disc, PO-HA, A/O Very Fine, 6 in x NH 6 HL, 7010292688
Standard Abrasives 53319, Zirconia HP Type 29 HD Flap Disc, 645897, 4-1/2 in x 5/8-11 36, 7010330748
3M 36286, Hookit Blue Abrasive Disc, 3 in, Grade 180, No Hole, 7100229960, 50 Discs Per Carton
Standard Abrasives 20257, Ceramic Type 27 Flap Disc, 645023, 4-1/2 in x 7/8 in 36, 7010330760
3M 49912, Stikit Gold Paper Disc Roll 216U, 5 in x NH P150 A-weight, 7000028127, 175 discs per roll
3M 02095, Trizact Hookit Clear Coat Sanding Disc, 5 in, 7100041247, 25 per carton
3M 01138, Hookit Red Abrasive Disc Dust Free, 6 in, P500, 7000045454, 50 discs per carton
3M 36270, Stikit Blue Abrasive Disc Roll 321U, 5 in, 240 grade, 7100215947, 100 discs per roll
3M 55362, Flap Disc 566A, 40, T27 Quick Change, 4-1/2 in 5/8"-11, 7010361781, 10 per case
3M 45028, Diamond Grade Digital Reflective Sheeting 3924SUDS, Fluorescent Orange, 36 in x 50 yd, 1 Roll/Case, 7100282405
Standard Abrasives 528422, Quick Change Zirconia Pro 2 Ply Disc, 36, TSM, Green, 2 in, Die QS200PM, 7100220951, 200/case
3M 00380, Stikit Purple Abrasive Disc 740I, 8 in, 36E, 7010359432, 25 discs per box
3M 65490, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH580TRI-10I, 5 inch UH, 80, 7100202887, 10 per pack
3M 01137, Hookit Red Abrasive Disc Dust Free, 6 in, P600, 7000045453, 50 discs per carton
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 68033, Trizact Finesse-it Film Disc Roll 466LA, A5, 3/4 in x NH, Die 75K, 7010510190, 2000 discs per roll 
